When a muscle is in its resting state Ca 2+ ions are

In a muscle's resting state, calcium ions (Ca2+) are predominantly found in the sarcoplasmic reticulum, a specialized form of endoplasmic reticulum in muscle cells, where they are sequestered until the muscle is stimulated to contract.

When a muscle is in its resting state Ca 2+ ions are

In a muscle's resting state, calcium ions (Ca2+) are predominantly found in the sarcoplasmic reticulum, a specialized form of endoplasmic reticulum in muscle cells, where they are sequestered until the muscle is stimulated to contract.

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When a Muscle Is in Its Resting State Ca²⁺ Ions

Question 23

Multiple Choice

When a muscle is in its resting state Ca²⁺ ions are

A) bound to troponin.
B) found in the sarcoplasmic reticulum.
C) attached to the heads of myosin molecules.
D) stored within the sarcoplasm.
E) bound to actin fibres.

Correct Answer: